Republican U.S. presidential nominee Donald Trump speaks at Youngstown State University in Youngstown, Ohio August 15, 2016. REUTERS/Eric Thayer

Republican U.S. presidential nominee Donald Trump speaks at Youngstown State University in Youngstown, Ohio August 15, 2016. REUTERS/Eric Thayer

Republican U.S. presidential nominee Donald Trump speaks at Youngstown State University in Youngstown, Ohio August 15, 2016. REUTERS/Eric Thayer

August 15, 2016 4:16 PM (UTC+8)